In Tokyo, there is a place called Velude Way. It is a district notorious for its performers and theatrical groups. Izumi Tachibana, who was previously a stage actress, arrives with a letter that reads, "Full of debt! Zero customers! Only one actor!" It describes the current state of the once-popular theater group Mankai Company. Her task is to rebuild the company to its former glory as the new owner and chief director.
You can now watch A3! online on the following streaming providers in the United States.
| Directing | Masayuki Sakoi | Series Director |
| Costume & Make-Up | Ryou Akizuki | Costume Designer |
| Sound | Masafumi Watanabe | Foley Artist |
